Power-transmitting mechanism.



c. L. YOKOM. POWER TRANSMITTING MECHANISM. APPLICATION FILED MAR22, 1915. 1 171 493.- Patented Feb. 15,1916.

9 Q 2 SHEETS-SHEET l Witnesses Inventor Attorneys THB cpLuMam PLANOGRAPH co., wAsiuNn'ro N. b. 'c';

I POWER TRANSMITTING MECHANISM.

APPLICATION FILED MAR-22, 915.

Witnesses Inventor Attorney THE COLUMBIA PLAX iOGRAPH cm, WASHINGTONLD. c.

Patented Feb. 15,191 f 2 SHEETS-SHEET 2.

CHARLES L. YOKOIVI, orivioun'r VERNON, onneon.

rownn-rnansivirrrnve MECHANISM.

Specification of Letters Patent. Patented Feb. 15, 1916.

' Application'filed March 22, 1915; Serial No. 16,197. i

' To all whom it may concern Be it known that I, CHARLES L. .YOKOM, a

citizen of the United States, residing at Mount Vernon, in the county of Grant and 7 State of Oregon, have inventeda new and. useful Power-Transmitting Mechanlsm, of

which the following is a specification.

This invention relates to power transmitting mechanism and more particularly to means for converting rotary motion into reciprocating motion whereby a long stroke of an operative member, such as a pump rod,

3 can be produced by the rotation of a drive element.

A further object is to provide a jointed pitman of novel formhaving. means for guiding it during its actuation'by the revoluble drive element, said guiding means being such as positively to prevent the pitman from leaving its proper course, durlng the operation of the mechanism.

Another object is to provide mechanism of this character which is simple and COII1' pact and which will not-readily get out of order.

With the foregoing and-other objects in view which will appear as the. description proceeds, the invention resides in the combination and arrangement of parts and inthe details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment ofthe invention herein disclosed, can'be made within the scope of what is claimed, withoutdeparting from the spirit of the invention.

:In the accompanying drawings the preferred form of the invention hasbeen shown. In said drawings :Figure 1 is a :front elevation of the power transmitting mechanism constituting'the present invention, the same being shown supported by the revoluble head of a windmill, the table on which said head is mounted, being shown in section and the pitman of the mechanism being illustratedat one end of its stroke. Fig. 2 is a view similar to Fig. 1 and showing the pitman at the other end of its stroke. Fig. 3 is anelevation of the opposite I side of the mechanism, the pitman being shown at an inte'rmediate point. Fig. 1] is'an enlarged section on line A.-B Fig. 1. Fig. 5 is a perspective view of a portion of the rack member of the pitman.

7 reference 1 designates the'table of a Wind? Fig; 6 is an enlarged .sectlon on l1ne C-D Fig. 3.

Referring to the figures by characters of men mill structure 2, this-table being, provided with an opening 3. Supported by the table is a revoluble head 1-," there being preferably 'a series of anti-friction balls 5 interposed between the head and table so that the said Fixedly connected to the head 4 is guide I which extends above and below thehead,

this guide including an elongated frame '6 one side of which has its upper end portion inclined upwardly and inwardly as at 7 to form a deflector, said deflector merging'at its upper end into a'short downwardly and;

outwardly inclined upper end portion 8 of the other side ofthe frame. This last mentioned side is provided. at its lower end, with a downwardly and. inwardly inclined deflecting portion 9 terminating at the up-- per end of a slotlO formed in the'lower por- .tion of the frame. A groove or channel 111' is extended. continuously along the inner surface of each of the sides of frame 6,

along the inclined portions 7, Sand 9, and along the walls ofthe slot 10. Arranged in the upper portion of the frame is a guide clined portions 7 and-8 and provided at its lower end with outwardly and laterally extending arms 13 'secured'to the sides of the frame 6 as shownparticularly inFigs. 3 and 6. .A switch 14: is pivotally connected to one 51, 16 of the frame 6 near the lowerportion of the inclineor deflector 7 and the upper porrail 12 parallel with but spaced from the in- 1 tion. of this switch normally :rests .on the upper portion of the rail 12, it being held yieldingly in such position byv a spring. 15.

The head 4: is. provided with an unobstructed opening between the sides ofthe frame 6, and securedto one side of the frame directly above the head is a cross strip 16, the lov verportioin of which is formed with a substantially semi circular recess 17. 'An arcuate cross strip 18 is secured to the opposite side of the frame 6 and below the head 4:. The back'portion of frame, 6 is closed at its lower end by a cross plate 19, the slot 10 thus being exposed only 1 in the front face of the frame.

'Journaled on the head .4 isa transverse l e tg to which the wind wheel W 1s 00 nected, this shaft being provided with a gear 21 located in the opening 22 formed in the head A bracket 23 is secured to the lower portion of the frame 6 and is secured to the lower end of a guide rod 24, the upper end of .this rod being secured to the head- 1.

Mounted on the guide rod is a slide 2 5 to which the pump rod 26 is secured. A link 27 is pivotally connected to the slide 25 and, by abolt 26, to the lower end of a rack bar 28, the bolt 26 supporting a roller 29, the diameter o'f which is equal to or slightly less than the width of the slot 10. Rack bar 28 is'provided with tin-endless series of rack teeth extending along both longitudinal edges and around both ends, the said-ends of the bar being semi-circular. Some portion or the series of'raclrteeth is constantly in mesh-with the gear 21 andthe rack bar 28 is'so proportioned that when the lower end of said bar is seated in the lowest portion of the slot 10, the upper portion of the bar is directly under and in mesh with the gear 21, ,as-shown in'Fig. 2. Theparts are further, 'soproportioned that when the lower end of thera ck bar 28 isres ting onthe'gear 21, the upper end of said rackis'positloned in the uppermost portion of theframe 6. A

guide roller 29 extendslaterally "from' the upper portionof the rack bar 28 and is adapted to travel between the inclines 7 and i Sand the guide rod 12,thisjrollerbeing located upon the uppermost portion of the guide12 when the lower end of rack bar 28 is'resting on gear 21, as shown in Fig. 1.

' T'hebar "28-and the link 27 constitute a jointed pitman.

lt' is to be understood'thatthe rod 26 is preferably connectedto the slide 25 by a swivel and islocated along the axis of rotation ofthe head 4. The teeth of the .rack bar 28 are preferably set into the rack 'as'shown in Fig. 5 so that the rack will operate smoothly and without mutilating its guide frame 6 anclwitliout shifting laterally out of mesh with gear 21.

3 It is to be understood that when the shaft 3 and "will thrust the rack bar'28-downtravels within the groove 11. This downward movement results in a corresponding downward moyementor" slide 25 and rod 26. 'When'the rack bar 28 reaches its lowermost positiom'its upperyend is shifted laterally byjthe' rotating gear '21 and the bar isthus brought toposition between said gear and one side of the "frame 6;and is thrust upwardly, pulling. through the link 27, upon the slide 25. As the rack approaches its uppermost position, the roller 29 enters between the guide r0d12 and the deflector 7 and thrusts against the switch 1 1 so as to pushthe switch out of its path and against thea'ction of spring 15. As soon as the roller passes the free end of the switch, said switch. drops back onto the upper end portion of the rod 12 and thus holds the roller against return movement along the guide rail.

lVhile' the roller is thus held by the switch,

the lower end of the rack bar passes over the gear 21 and then begins to move dovvnwardly between theear and the other side of the D 1 frame (3, this movement causing the roller 29 to travel "downwardly between the incline 8 and the guiderod 1'2. Tlnis it w'ili' be seen that anumberq of revolutions of the gear 21 Q will benecessaryto e'iiect one complete reciprocation of theslide 25. Consequently theinechanism not only serves to convert I rotarymotion' into reciprocating motion, but

also acts as a speed reducing means.

Byjprovlding the arcuate'cross strip 18 and the ar'cuate recess 17 in the strip 16, the rack 28 is prevented from movingiout ofmesh with the 1 (gear :21 while its ends are "passing the gear. For' example,

when the upper end of therack 2g is passing undergear 21,-the roller 29" is riding along the concentrio-upper edgeofthdstrip 12, Whereas whilethelower 'endof rack 28 is passing overthe'gear-'21,the roller 29 is passing along the wall of'the recess 17.

VVhat isiclaimed is 1; 'Powertransmitti-ng mechanism including a guide having upwardly converging defle'ctors at its upper end, a guide member spaced from andsubstantially}parallel with said deflectors, there being a slot in'the lower portion of the guide and a deflector leading thereto, a gear *mounted'for rotation within the guide, a'rack barhaving an'end'less series of teeth extending along opposed edges and ends thereof, 1, said ends being rounded, an

outstanding rol-ler upon each end portion of the rack, one otsal'd rollers-being movable against and along the' upper "deflector and "upontheguide adjacent thereto and the other roller' being movable; along the lower deflector "and into the slot, said rack being constaifitly inmesh with. the gear and being "mounted to swing a'n d slide within the guide,

and a switch pivotally connected to the guide and a'dj acent'one of the upper deflectors, said switjch'beingin the path of the rollerat one "end of the rack.

"2. Power transmitting mechanism including a guidehaving upwardly converging defiectors at its upper end a guide member spaced from and substantially parallel with saiddeflectors, there bein'g'a slot in" the lower "portion of the guide and a deflector, leading thereto, a gear mounted for rotation within T the guide. a rack bar haiing' an'en dless series of teeth extending along opposed edges and endsthereof, said ends being rounded, an

outstanding roller upon each end portion of the rack, one of said rollers being movable against and along the upper deflector and upon the guide adjacent thereto and the other roller being movable along the lower deflector and into the slot, said rack being constantly in mesh with the gear and being mounted to swing and slide within the guide, a switch pivotally connected tothe guide and adjacent one of the upper deflectors, said switch being in the path of the roller at one end of the rack, a slide, a guide therefor, and a lilnk connection between the slide and the rac z.

3. Power transmitting mechanism includ ing a guide having upwardly converging deflectors at its upper end, a guide member spaced from and substantially parallel with said deflectors, there being a slot in the lower portion of the guide and a deflector leading thereto, a gear mounted for rotation within the guide, a rack bar having an endless series of teeth extending along opposed edges and ends thereof, said ends being rounded, an

outstandingroller upon each end portion of the rack, one of said rollers being movable against and along'the upper deflector and upon the guide adjacent thereto and the other roller being movable along the lower deflector and into the slot, said rack being constantly in mesh with the gear and being adjacent one of the upper deflectors, said 3'0 mounted to swing and slide within the guide, a switch pivotally connected to the guide andv switch being in the path of the roller at one V end of the rack, andmeans concentric with the gear and cooperating with the respective rollers onthe'rack .for holding the end por- Copies of this patent may be obtained for five cents each,by addressing the Commissioner of Patents,

7 Washington, D. G. i V 

